足月人胎胸腺实质的肥大细胞  

THE MAST CELLS IN THE THYMUS OF FULL-TERM FETUS

作　　者：张兰芬[1] 吴江声[1] 孙品伟[1] 傅爱华[1] 陈慰峰[2] 

机构地区：[1]北京医科大学组织学胚胎学教研室,北京100083 [2]北京医科大学免疫学教研室,北京100083

出　　处：《解剖学报》1993年第1期105-108,T019,共5页Acta Anatomica Sinica

基　　金：国家自然科学基金;美国洛氏基金会中华医学基金资助课题

摘　　要：用阿尔新蓝-番红花红(AB-S)、长时间甲苯胺蓝(LTB)、氯醋酸酯酶3种组织化学方法和电镜观察证实,人胎胸腺实质中存在肥大细胞,并分别作了计数。结果表明,皮质中肥大细胞数目较髓质多。用AB-S染色,胞质内含阿尔新蓝阳性(蓝染)颗粒的肥大细胞数较含番红花红阳性(红染)颗粒的数目多。结合超微结构观察表明,胸腺实质中的肥大细胞颗粒特点符合胰蛋白酶阳性肥大细胞(TMC)类型。本文就其存在、数目和染色特性进行了讨论。In the present study, it is demonstrated that the mast cells are present in the thymus of full term fetus by staining with alcian blue-safranin(AB-S) and long toluidine blue technique(LTB). Staining for the chloroacetate esterase reaction demonstrated that the mast cells in the thymus have chloroacetate esterase activity. The results obtained from cell counting suggest that the number of mast cells in the cortex is more than that in the medulla with long toluidine blue technique, and the number of mast cells containing Alacian belu-positive granules is more than that containing safranin-positive granules by staining with Alcian blue-safranin. On the basis of ultrastructural features of the mast cells, it is proposed that the mast cells in thymus probably belong to T mast cell.

关 键 词：肥大细胞 胸腺 组织化学 超微结构 

分 类 号：R322.53[医药卫生—人体解剖和组织胚胎学]